#pragma once

#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>

typedef int Data;

typedef struct Stack
{
	Data* S;
	int top;
	int size;
}ST;

typedef struct st
{
	struct Stack* STpush;
	struct Stack* STpop;

}st;


ST* InitStack();

st* InitST();

void STpush(ST* st,Data x);

void STpop(ST* st);

Data STtop(ST* st);




